dodgepudding/wechat-php-sdk — pull request #154 by zhangruizhou (2014-11-12 03:30:17+00:00)
Title: Update wechat.class.php

发货通知 (sendPayDeliverNotify ) 函数生成签名串用strval转化时会有错误（微信提示49004 支付签名错误）
"transid"=>strval($transid),
"out_trade_no"=>strval($out_trade_no),
"deliver_timestamp"=>strval(time()),
"deliver_status"=>strval($status),

Author：zhangruizhou
Date：2014-11-12